Vacuum pump cabinet

ABSTRACT

An cabinet for retaining a vacuum pump. The cabinet includes, in certain embodiments, removable access panels that allow access to the interior of the cabinet and to a vacuum pump placed within the cabinet. In certain embodiments the cabinet includes a top surface and at least one side surface. Portions of these top and side surfaces are removable from the cabinet to allow access to a vacuum pump that can be placed within the cabinet.

BACKGROUND

Vacuum pumps are widely used in laboratory environments to permit theoperation of analytical equipment and to conduct experimentalprocedures. For example, mass spectroscopy equipment requires strongvacuums in order to operate properly. Although vacuum pumps areessential to many analytical and experimental tasks, the pumps are oftenrelatively loud and cumbersome to maintain. Vacuum pumps can be isolatedwithin small cabinets to reduce ambient noise, but such isolation cancause overheating. Vacuum pumps also require maintenance to adjust pumpsettings and to remove excess lubricant, tasks that are often difficultwith existing cabinets because existing cabinets can make it difficultto access and perform routine maintenance on the vacuum pump.

Therefore, a need exists for improved cabinets for containing vacuumpumps.

SUMMARY

The present invention is directed to a cabinet for retaining a vacuumpump. In certain embodiments the cabinet for retaining a vacuum pumpincludes an enclosure defined by a first wall, a second wall, and a topsurface. The cabinet includes an access opening defined by at least thefirst wall and top surface. The cabinet also includes first and secondaccess panels configured to partially cover the access opening. Thesefirst and second access panels are removable from the access opening topermit access to a vacuum pump within the cabinet.

In specific embodiments the cabinet includes a first wall, a secondwall, and a top surface that define an enclosure configured to receive avacuum pump. The cabinet also includes a first removable access panelthat forms part of the top surface of the cabinet and a part of thefirst side of the cabinet. The cabinet also includes a second removableaccess panel, the second removable access panel comprising a part of thetop surface of the cabinet and a part of the second side of the cabinet.A port in the cabinet allows for connection of a vacuum line into thecabinet, and this port is defined by an edge of the first removableaccess panel and an edge of the second removable access panel.

Additional embodiments of the cabinet for retaining a vacuum pumpinclude a back surface, wherein at least a portion of the top surface,first side, or second side of the cabinet extends beyond the backsurface to form a portion of a conduit on the back of the cabinet.

The above summary of the present invention is not intended to describeeach disclosed embodiment or every implementation of the presentinvention. The Figures and the detailed description that follow moreparticularly exemplify these embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front perspective view of a cabinet for retaining a vacuumpump.

FIG. 2 is a simplified top view of a cabinet for retaining a vacuumpump.

FIG. 3 is a front view of a cabinet for retaining a vacuum pump.

FIG. 4 is a rear view of a cabinet for retaining a vacuum pump.

FIG. 5 is a side view of a cabinet for retaining a vacuum pump.

FIG. 6 is a simplified top view of a cabinet for retaining a vacuumpump, showing a first side portion removed.

FIG. 7 is a simplified top view of a cabinet for retaining a vacuumpump, showing a second side portion removed.

FIG. 8 is a rear perspective view of a cabinet for retaining a vacuumpump.

FIG. 9 is a side cross sectional view of a cabinet for retaining avacuum pump.

FIG. 10 is a perspective view of a frame of a cabinet for retaining avacuum pump, showing a catch basin beneath the frame for retaininglubricant.

FIG. 11 is a perspective view of a frame of a cabinet for retaining avacuum pump, showing a catch basin beneath the frame for retaininglubricant, the catch basin partially withdrawn from the frame.

FIG. 12 is a top perspective view of a catch basin for retaininglubricant from a vacuum pump.

FIG. 13 is a partial bottom perspective view of a catch basin forretaining lubricant from a vacuum pump.

FIG. 14 is a partial side elevational view of a cabinet for retaining avacuum pump, the enclosure including an apparatus for elevating aportion of the enclosure.

FIG. 15 is a partial side elevational view of a cabinet for retaining avacuum pump, the enclosure including an apparatus for elevating aportion of the enclosure.

DETAILED DESCRIPTION

Various embodiments of the present invention will be described in detailwith reference to the drawings, wherein like reference numeralsrepresent like parts and assemblies throughout the several views.Reference to various embodiments does not limit the scope of theinvention, which is limited only by the scope of the claims attachedhereto. Additionally, any examples set forth in this specification arenot intended to be limiting and merely set forth some of the manypossible embodiments for the claimed invention.

Referring now to FIGS. 1-7, a cabinet 20 containing a vacuum pump 22 isshown in an example embodiment. The cabinet 20 is suitable for holding avacuum pump 22 during operation of the pump 22, allowing the vacuum pump22 to be kept cool while also allowing relatively easy access to thevacuum pump and reducing ambient noise generated by the vacuum pump. Thevacuum pump 22 can be used, for example, in mass spectrometry,lyophilizers, and vacuum ovens. The cabinet 20 substantially surroundsthe vacuum pump. The cabinet 20 includes a first side wall 24, a topsurface 26, and a second side wall 28. The top surface 26 is joined tothe first side wall 24 along an edge 25, and is joined to the secondside wall 28 along an edge 27. In certain embodiments the top surface26, and side walls 24, 28 are integrally formed from a single material,such as a piece of bent sheet metal. However, in other implementationsthe top surface 26 and side walls 24, 28 are separately formed and thenjoined along edges 25, 27.

The top surface 26 and side walls 24, 28 define an interior space orenclosure into which a vacuum pump is placed. In addition, the cabinet20 also includes a front 36 and back 40, placed at opposite ends of thecabinet 20. The front 36 can include a door 38 providing an opening tothe front of a vacuum pump placed within the cabinet. The cabinet 20 isconstructed such that additional access is easily gained into thecabinet 20 by removing one or more access panels that form at least apart of the first wall 24, top surface 26, or second wall 28. Firstaccess panel 32 forms a portion of the first wall 24 and a portion ofthe top surface 26. Second access panel 34 forms a portion of the secondwall 28 and top surface 26.

The cabinet 20 shown in the depicted embodiment is constructed such thatfirst access panel 32 and second access panel 34 are each easilyremovable from the cabinet 20 such as by loosening screws 52 and liftingthe access panel 32 or 34 from the cabinet 20. Removal of the first andsecond access panels 32, 34 provides access to the interior of thecabinet 20, in particular to a vacuum pump within the cabinet 20.

FIG. 2 shows a simplified top view of the cabinet 20 shown in FIG. 1,indicating the relative top positions of the first access panel 32 andsecond access panel 34 in the depicted embodiment. FIG. 2 also shows twoports 50 that are formed along the edges of first and second accesspanels 32, 34. These ports 50 allow hoses and vacuum lines to extendinto the cabinet 20, and also allow portions of a vacuum pump to extendout of the cabinet 20, as necessary. In some embodiments the cabinet 20contains just one port, while in other embodiments the cabinet 20contains more than two ports.

The first and second access panels 32, 34 are constructed, in certainembodiments, to form a sufficient portion of the top surface 26 of thecabinet 20 to allow removal of a vacuum pump from within the cabinet 20.However, in other implementations removal of the first and second accesspanels 32, 34 is sufficient to give access to the interior of thecabinet 20 without allowing removal of the full vacuum pump within thecabinet 20.

The depicted embodiment includes two removable access panels 32, 34, butalternative embodiments have just one removable access panel or morethan two removable access panels 32, 34. Also, although the depictedembodiment shows access panels 32, 34 covering a portion of the topsurface 26 and each of the first wall 24 and second wall 28, alternativeembodiments include access panels that cover portions of the front orback of the cabinet 20.

First access panel 32 and second access panel 34 meet along an edge 48,as shown in FIGS. 1 and 2. In some implementations the first and secondaccess panels 32, 34 overlap along edge 48, while in otherimplementations access panels 32, 34 abut against one another withoutoverlapping. The access panels 32, 24 combine to form ports 50 thatallow for tubes, pipes, and cords of a vacuum pump to extend out fromthe cabinet 20. Various parts of the vacuum pump can also extend throughthese ports 50, such as an exhaust tube or an exhaust filter. The edgeof each port 50 in the shown embodiment is formed by part of each of theaccess panels 32, 34. Thus, the access panels 32, 34 can be lifted fromthe cabinet 20 without removing any hoses, tubes, or other articlesextending through the ports 50.

In some embodiments of the invention, alternative access panels 32, 34are provided with differing arrangements for ports 50, allowingcustomization of the enclosure for different vacuum pumps or differentvacuum pump configurations. For example, more or fewer ports 50 can beprovided, as well as different positions of the ports 50 and differentsizes of the ports 50. It is possible to customize a cabinet for aspecific configuration of ports 50 by selecting customized access panelswithout changing the remainder of the cabinet.

The surface area covered by the removable access panels 32, 34 can varydepending upon the embodiment. In some embodiments, removable accesspanels cover a portion of the top surface 26 and a portion of one ormore sides 24, 28. In yet other embodiments, the removable access panels32, 34 cover a portion of the top surface 32, 34 and a portion of theback 40 of the enclosure. In addition, although the cabinet 20 shown inFIGS. 1 to 7 has substantially planar surfaces joined along straightedges, alternative embodiments include those in which the cabinet 20 hascurved surfaces and/or non-linear edges.

In further reference now to FIGS. 1 and 3, the cabinet 20 includes afront 36 having a door 38. In the depicted embodiment, the door 38rotates around a hinge 41, and can be kept in a closed position by handfastening screws 42, 44. It will be appreciated, however, that numerousalternative mechanisms can be used for allowing the opening or removalof door 38, including hinges, latches, fasteners, etcetera. In addition,various mechanisms, latches, locks, and fasteners may be used instead ofscrews 42, 44 to keep the door 38 closed.

In some implementations the cabinet 20 is equipped with a removablecatch basin 54 for retaining lubricant discharged from the vacuum pump.This catch basin 54, also referred to as an oil pan or lubricant pan,retains lubricant discharged from the vacuum pump, and this retainedlubricant can then periodically be removed from the cabinet 20. Thecabinet 20 depicted in the embodiment shown in FIG. 1 is mounted on aplurality of wheels 56. The wheels permit the cabinet 20 to be easilymoved to different locations, and to be readily stored in a convenientlocation, such as under a laboratory bench. In some implementations thewheels 56 can be locked, thereby preventing unintentional rolling of theenclosure. In other implementations no wheels are used.

Referring now to FIG. 4, the back 40 of a cabinet 20 is shown. The back40 of the cabinet 20 can include, for example, a junction 35 forconnecting the enclosure to a power source. The back 40 can also includea pivoting stand 58 that rotates to elevate the back 40 of the cabinetrelative to the front 36, thereby allowing collected lubricant in thecatch basin 54 to flow out a drain spout in the front of the basin.

In certain implementations, the back 40 is constructed to permit theflow of cooling air streams in or out of the cabinet 20 while alsolimiting the escape of sound from the cabinet 20. In one embodiment, theback 40 includes one or more openings into which one or more coolingfans are positioned. A single fan can be used to either exhaust air fromthe cabinet 20 or to draw air into the cabinet 20. Alternatively, twofans are used, one to draw in air and one to exhaust it. In yet otherimplementations, two or more fans are used to both draw in air or toexhaust air. In a simple configuration just one fan is used, and it ispositioned at the back 40 of the cabinet 20 to exhaust air from thecabinet 20. As air is exhausted, additional air can be drawn into thecabinet 20 from a gap around the front door 38 of the cabinet 20 oralong other openings in the cabinet 20, such as from beneath the cabinet20 or around the edges of the catch basin 54.

The volume of noise escaping from the back 40 of cabinet 20 is limitedin certain embodiments by placing a baffle 37 over the opening oropening in the back 40 of the cabinet 20. In certain embodiments, thebaffle 37 includes a substantially flat sheet of material (such asplastic or metal) that occludes the opening or openings beneath it, butwhich has a gap along its perimeter to allow the ready flow of airaround the sheet. In some implementations, the gap is located around theentire perimeter of the sheet, while in other implementations the gap isalong only a portion of the perimeter.

Referring now to FIG. 5, the various portions of the cabinet 20 areshown in side elevational view, including the front 36, back 40, topsurface 26, and second side 28, which includes a portion of secondaccess panel 34. The catch basin 54 beneath the cabinet 20 is depictedas running along most of the bottom of the cabinet 20, although in otherembodiments the catch basin 54 is smaller. Pivoting stand 58, shown inend view in FIG. 4 is shown in side view in FIG. 5, and also shows thepivot point 65 around which the pivoting stand 58 rotates. In FIG. 5 thepivoting stand 58 is stowed away at the back 40 of the cabinet 20,retained by latch 59. In this depiction all wheels 56 of the cabinet 20are on the ground, and the lubricant collection basin 54 is in asubstantially horizontal orientation promoting collection of lubricant.

Each of the first and second access panels 32, 34 can be independentlyremoved in certain embodiments of the invention, or each is separatelyremovable in other embodiments. FIG. 6 shows a top view of the cabinet20 after the first access panel 32 has been removed, thereby revealingthe interior 21 of the cabinet 20. FIG. 7 shows a top view of thecabinet 20 after the second access panel 34 has been removed, therebyalso revealing the interior 21 of the cabinet 20. FIGS. 6 and 7 showalternate removal of the two access panels 32, 34, but it is alsopossible to remove both access panels 32, 34 at once.

FIG. 8 shows an additional view of the back 40 of a cabinet 20, alongwith a baffle 37. A lip 70 is shown extending along both sides of thecabinet 20 as well as along the top surface 26. The cabinet 20 shown inFIG. 8 also depicts two removable access panels 32, 34, although in thisembodiment the access panels 32, 34 cover only a portion of the topsurface 26, rather than along either side of the cabinet 20. FIG. 9shows a cross section of the cabinet 20 shown in FIG. 5, and depicts thetwo positions for the pivoting stand 58, indicating the manner in whichthe back of the enclosure is elevated to permit drainage of thecollection basin 54.

In order to drain lubricant from the collection basin 54, the pivotingstand 58 can be rotated so that its foot portion 67 contacts the floorbeneath the enclosure 54, causing the rear portion of the catch basin 54to become elevated as the basin and/or cabinet 20 is partially supportedby the leg 69 of the pivoting stand 58. After the collection basin isdrained the pivoting stand 58 can be rotated back to a stored positionand the collection basin 54 returned to a more horizontal position.

The volume of noise escaping from the cabinet 20 is also controlled, insome embodiments, by extending some or all of sides 24, 28 and the topsurface 26 of the cabinet 20 past the back 40 of the cabinet 20. FIG. 5shows a phantom line where the plane 55 of the back 40 is located. Asshown in FIG. 5, the side wall 28 can be made to have an extendedportion 70 that reaches past the plane 55 of the back 40, effectivelycreating lip 70. The lip 70 extends past the plane 55 of the back 40 bya distance L measured between lines A-A′. In some implementations atleast a portion of the top surface, first side, or second side of thecabinet 20 extends beyond the plane 55 of the back 40 of the cabinet 20by a distance L of at least 0.5 inches, while in other implementations aportion of the top surface, first side, or second side of the enclosureextends beyond the plane defined by the back surface of the cabinet 20by a distance L of at least 1.0 inches, while in yet otherimplementations a portion of the top surface, first side, or second sideof the enclosure extends beyond the plane defined by the back surface ofthe cabinet 22 by a distance L at least 1.5 inches.

Lip 70 extend around the sides and top of the cabinet in someembodiments, yet does not extend along the bottom of the cabinet, sothat in operation the cabinet can be positioned against a wall or otherflat surface so that the lip 70 comes in close proximity to the wall orcontact the wall. This creates a channel for air flow between the back40 of the cabinet 20 and then downward toward the floor, since only thebottom or lower portions of the cabinet 20 do not have a lip 70. In theembodiment depicted in FIG. 5, the lip 70 does not extend along thelower portions of side wall 28, reducing resistance to air flow at theselower portions while also allowing the cabinet 20 to be pressed againsta wall which has a baseboard or trim along the floor.

In certain embodiments the cabinet 20 further comprises a soundinsulating material on the interior of the enclosure. The soundinsulating material comprises foam in some implementations.Alternatively, a sound absorbing woven or non-woven material can beused, or other sound absorbing material. The sound insulating material,such as foam, can be used to line part or the entire interior of thecabinet.

The invention is also directed to an apparatus for collecting lubricantfrom a vacuum pump, the apparatus comprising a variable depth basinconfigured to receive and retain lubricant from the vacuum pump. Thevariable depth basin includes a front portion having a first depth and arear portion having a second depth. In some implementations the variabledepth basin has a bottom inclined from horizontal such that the basin isdeeper near its front. For example, the variable depth basin can have afirst, shallow portion inclined to a second, deeper portion. Thevariable depth basin includes a plurality of substantially horizontalareas connected by inclined areas in other embodiments. The variabledepth basin has one pour spout configured to drain collected lubricantfrom the basin in some embodiments, and the variable depth basin has twopour spouts in certain embodiments.

Two opposite edges of the variable depth basin 54 are configured toslidably engage the sides of a cabinet for holding a vacuum pump. Insome embodiments opposite edges of the variable depth basin 54 areconfigured to slidably engage rails 75 along the sides of the frame 71,and these opposite edges of the variable depth basin 54 comprise a lip77 extending along the edges of the basin 54. Referring now to FIGS. 10and 11, the interior of an example cabinet is disclosed. FIGS. 10 and 11show a frame 71 onto which a vacuum pump can be placed. In the depictedembodiment, frame 71 includes first side member 72 and second sidemember 74, along with a first cross member 76 and a second cross member78. The rails 75 comprise a portion of the side members 72, 74 in someimplementations, and are independent of the side members 72, 74 in otherimplementations.

The back 82 of the frame 71 is shown having two ventilation openings 84,which are typically covered by a baffle on the exterior of the enclosure(not shown). The front 86 of the frame 71 is shown, along with a door orcover 38. In this embodiment the door 38 does not completely seal thefront of the enclosure, and instead has a gap 88 around at least aportion of its perimeter. This gap 88 allows air to pass through thefront of the enclosure, to then flow around a vacuum pump within theenclosure before exiting out one or both of the ventilation openings 84at the back of the enclosure. However, in alternative embodiments thedoor 38 completely seals the front of the cabinet 20, thereby providingimproved sound insulation. Also, in some alternative embodiments theflow of air is into the cabinet from the back ventilation openings andthen through the cabinet and out the front.

Beneath the frame 71 is positioned a lubricant collection basin 54. Thebasin 54 covers substantially the entire underside of the cabinet 20 inthe embodiment shown, although in other implementations the basin isconfigured to cover less than the entire underside of the enclosure. Thebasin shown in FIGS. 10 and 11 is removable from the cabinet 20. Removalof the basin 54 allows it to be more easily cleaned and can help indraining the basin 54, although alternative embodiments provide for astationary basin 54 that is not readily removed from the cabinet 20.

When the basin 54 is removable, such as in the embodiment shown in FIGS.10 and 11, the basin 54 is typically constructed such that it can beremoved without spilling lubricant collected in the basin, and thus itis generally constructed so that it can be removed without substantialtilting. The embodiment shown in FIGS. 10 and 11 slides along the firstand second side rails 72, 74 of the frame 71 of the cabinet 20, therebyallowing the basin 54 to be removed while being kept horizontal toreduce or eliminate spilling.

Additional aspects of the basin 54 are shown in additional detail inFIGS. 12 and 13. FIG. 12 shows a top perspective view of an exampleembodiment for a basin 54, while FIG. 13 shows a partial bottomperspective view of the front of a basin 54. In the depicted basin 54,the bottom 55 of the basin has a shallow inclined portion 57 draininginto a deeper reservoir portion 59. The shallow inclined portion 57 istypically positioned near the back of the basin 54, and lubricantdripping onto the shallow inclined portion 57 drains into the deeperreservoir portion 59. The reservoir portion 59 can have a horizontalbottom, an inclined bottom, or other shape. Although the shallowinclined portion 57 is shown as being a substantially planar surface,alternative configurations are possible, although in general it isdesirable to have good drainage from the inclined portion down to thereservoir portion. The basin is removable from the cabinet 20 by pullingon handle 75 in certain embodiments.

Periodically it is necessary to remove lubricant that has accumulatedinside the basin 54. In one implementation the basin is drained byeither of two drainage spouts 61 positioned on corners of the basin 54.The drainage spouts 61 are located so that they extend beyond any wheelssupporting the cabinet 20, thereby preventing spilling of lubricant ontothe wheels during drainage of the basin 54. In other implementations asingle drainage spout is used, such as from one of the corners of thebasin or at the front center of the basin. In yet other implementationsno drainage spout is provided, in which case lubricant is removed fromthe basin by a drain plug, pump, scoop, etcetera. The stepped design issimilar to the embodiment shown in FIGS. 12 and 13, but includesmultiple areas of differing inclines. Some areas have relatively shallowinclines, while other areas have relatively steep inclines. In yet otherimplementations the transitions from steep inclines to shallow inclinesare less abrupt, resulting in a curved or undulating bottom that getsgenerally deeper toward the front of the basin than toward the back.

During operation of a vacuum pump within the enclosure, the pump isplaced on top of the cross members 76, 78 in the embodiment shown inFIGS. 10 and 11. Optionally the pump is bolted or otherwise secured tothe cross members 76, 78 or other portion of the frame 71. The areabetween the cross members 76, 78 is open in some implementations, and iscovered with additional support members in other implementations.Generally, however, there are sufficient openings on the underside ofthe frame 71 to allow lubricant readily to flow from the vacuum pumpdown into the basin 54. Typically the vacuum pump is elevated above thebasin 54 and does not rest on top of the basin, thereby allowing thebasin to be removed from the enclosure without lifting or moving thevacuum pump. It will be appreciated that although the depictedembodiment in the figures shows a pump supported on a frame with crossmembers, numerous other support designs are possible.

As noted above, in some embodiments the basin 54 on the underside of thecabinet 20 can be drained by removal of the basin 54 from the cabinet 20and then pouring the contents from the basin 54. In addition, in someembodiments the enclosure is constructed such that the basin 54 isreadily tilted from a horizontal position to an inclined position toallow fluid to flow through the spouts and drain the basin. In someembodiments the entire cabinet 20 is tilted to permit draining of thebasin 54, while in other embodiments only the basin itself is tilted, orthe basin along with supporting elements are tilted.

A further embodiment of an apparatus for aiding in draining of a catchbasin is shown in FIGS. 14 and 15. In one implementation the basin 54 istilted by elevating the back end of the cabinet 20 or the back end ofthe basin 54 to pour lubricant from the spout or spouts at the front ofthe basin 54. The back end of the cabinet 20 can be lifted by using apivoting stand 90, depicted in FIGS. 14 and 15. The pivoting stand 90rotates round an axis 92. In a first position, shown in FIG. 14, thepivoting stand 90 is tucked back into a stored position where it is notapplying a lifting force to the enclosure 20. In a second position,shown in FIG. 15, the pivoting stand 90 is rotated around so that a foot94 touches the floor and lifts the back of the cabinet 20 by supportingthe cabinet on leg 96 of the pivoting stand 90. The pivoting stand 90 issecured to opposite edges of the catch basin itself in certainembodiments, and is secured to opposite edges of the cabinet 20 in otherimplementations.

The various embodiments described above are provided by way ofillustration only and should not be construed to limit the invention.Those skilled in the art will readily recognize various modificationsand changes that can be made to the present invention without followingthe example embodiments and applications illustrated and describedherein, and without departing from the true spirit and scope of thepresent invention, which is set forth in the following claims.

1. A cabinet for retaining a vacuum pump, the cabinet comprising: anenclosure defined by at least a first wall, a second wall, and a topsurface, said enclosure configured to receive a vacuum pump; an accessopening in the cabinet, the access opening defined by the first wall,second wall, and the top surface of the cabinet; a first access panelconfigured to partially cover the access opening in the cabinet; asecond access panel configured to partially cover the access opening inthe cabinet; and an access port on a top surface of the cabinet at anintersection of the first and second access panels; wherein said firstand said second access panels are removable from the access opening topermit access to a vacuum pump within the enclosure and the first accesspanel forms part of the top surface of the cabinet and part of the firstwall of the cabinet.
 2. The cabinet for retaining a vacuum pumpaccording to claim 1, wherein the second access panel forms part of thetop surface of the cabinet and part of the second wall of the cabinet.3. The cabinet for retaining a vacuum pump according to claim 1, whereinthe cabinet further comprises: a support for a vacuum pump within thecabinet; and a lubricant-retaining container removably placed beneaththe support for the vacuum pump.
 4. A cabinet for retaining a vacuumpump, the cabinet comprising: a first wall, a second wall, and a topsurface defining an enclosure configured to receive a vacuum pump; afirst access panel removably attached to the first wall and the topsurface, the first access panel having a first edge; and a second accesspanel removably attached to the second wall and the top surface, thesecond access panel having a second edge; the first and second edgesdefining an access port in the cabinet.
 5. The cabinet for retaining avacuum pump of claim 4, wherein the cabinet further comprises: a thirdside wall in contact with at least the top surface of the cabinet alongan interface between the third wall and the top surface; an opening inthe third side wall for movement of air into or out of the cabinet; afirst portion of the top surface on a first side of the interface, saidfirst portion of the top surface forming at least a part of the interiorof the cabinet; a second portion of the top surface on a second side ofthe interface, said second portion of the top surface defining a portionof a conduit for movement of air into or out of the cabinet.
 6. Thecabinet for retaining a vacuum pump according to claim 5, wherein thethird wall is in contact with at least the top surface of the cabinetand the first wall of the cabinet; and the top surface and first wall ofthe cabinet define a portion of a conduit outside of the interior of thecabinet.
 7. The cabinet for retaining a vacuum pump according to claim5, wherein the conduit extends at least 0.5 inch from the interfacebetween the third wall and the top surface.
 8. The cabinet for retaininga vacuum pump according to claim 6, wherein the conduit extends at least1.0 inch from the interface between the third wall and the top surface.9. The cabinet for retaining a vacuum pump according to claim 4, whereinthe cabinet further comprises: a third surface; an opening in the thirdsurface, said opening permitting flow of air into the cabinet; a coverover the opening in the third surface substantially occluding theopening while still permitting the flow of air through the opening. 10.The cabinet for retaining a vacuum pump according to claim 4, whereinthe cabinet further comprises: a support for a vacuum pump within thecabinet; and a lubricant-retaining container removably placed beneaththe support for the vacuum pump.
 11. The cabinet for retaining a vacuumpump according to claim 4, wherein the cabinet further comprises a thirdwall, said third wall comprising an opening for cooling the interior ofthe cabinet; and wherein at least one of the first and second accesspanels configured to conceal the vacuum pump extends beyond the thirdwall to form a conduit.
 12. The cabinet for retaining a vacuum pumpaccording to claim 4, wherein the cabinet further comprises a soundinsulator on the interior of the cabinet.
 13. A cabinet for retaining avacuum pump, the cabinet comprising: a top surface, a first side, and asecond side defining a rear edge; wherein the top surface contains atleast a first opening configured for receiving a conduit in fluidcommunication with a vacuum pump; a first removable access panel, thefirst removable access panel comprising a part of the top surface of thecabinet and a part of the first side of the cabinet; a second removableaccess panel, the second removable access panel comprising a part of thetop surface of the cabinet and a part of the second side of the cabinet;and a back surface spaced from the rear edge.
 14. The cabinet forretaining a vacuum pump according to claim 13, wherein the back surfaceof the cabinet is spaced at least 0.5 inch from the rear edge.
 15. Thecabinet for retaining a vacuum pump according to claim 13, furthercomprising an access port positioned at an intersection of the first andsecond removable access panels.
 16. A cabinet for retaining a vacuumpump, the cabinet comprising: an enclosure defined by at least a firstwall, a second wall, and a top surface, said enclosure configured toreceive a vacuum pump; an access opening in the cabinet, the accessopening defined by the first wall, second wall, and top surface of thecabinet; a first access panel configured to partially cover the accessopening in the cabinet; a second access panel configured to partiallycover the access opening in the cabinet; a third wall comprising anopening for movement of air into or out of the enclosure, the third wallin contact with at least the top surface of the cabinet alone aninterface between the third wall and the top surface; a first portion ofthe top surface on a first side of the interface, said first portionforming at least a part of the cabinet; and a second portion of the topsurface on a second side of the interface, said second portion of thetop surface located outside the enclosure and defining a portion of aconduit for movement of air into or out of the enclosure; wherein saidfirst and second access panels are removable from the access opening topermit access to a vacuum pump within the enclosure and the secondaccess panel forms part of the top surface of the cabinet and part ofthe second wall of the cabinet.
 17. The cabinet for retaining a vacuumpump according to claim 16, wherein the third wall is in contact with atleast the top surface of the cabinet and the first wall of the cabinet;and the top surface and first wall of the cabinet define a portion of aconduit outside of the enclosure.
 18. The cabinet for retaining a vacuumpump according to claim 16, wherein the third wall is in contact with atleast the top surface of the cabinet, the first wall of the cabinet, andthe second wall of the cabinet; and the top surface, first wall of thecabinet, and second wall of the cabinet defining at least a portion of aconduit outside of the enclosure.
 19. A cabinet for retaining a vacuumpump, the cabinet comprising: an enclosure defined by at least a firstwall, a second wall, and a top surface, said enclosure configured toreceive a vacuum pump; an access opening in the cabinet, the accessopening defined by the first wall, second wall, and top surface of thecabinet; a first access panel configured to partially cover the accessopening in the cabinet; a second access panel configured to partiallycover the access opening in the cabinet; a support for a vacuum pumpwithin the cabinet; and a lubricant-retaining container removably placedbeneath the support for the vacuum pump; wherein said first and secondaccess panels are removable from the access opening to permit access toa vacuum pump within the enclosure.